coax

359 links - and 3 categories

40m Magnetic Loop Antenna - A coaxial cable tuneable magnetic loop antenna for 7MHz. This experimental antenna does not require a tuning capacitor
[ Hits: 3591 | Votes: 4 | Rating: 8.75 ]

Antenna Theory : Baluns - This article describe the principles of baluns when referred to devices used to balance unbalanced systems, like a coax cable and a dipole antenna
[ Hits: 706 | Votes: 2 | Rating: 9 ]
When and Where to Use Baluns - Baluns are usually used by Hams to feed dipole antennas with 50 ohm coax and to transpose from ladder line feeding a multi-band antenna to the unbalanced input of an antenna tuner.
[ Hits: 1522 | Votes: 9 | Rating: 7 ]

Double Bazooka Antenna - Double Bazooka Antenna, a simple coax based and broad band antenna you can easily build
[ Hits: 1611 | Votes: 10 | Rating: 8.1 ]

QRO No-Tuner Multiband Dipole - Construction details of a multiband dipole that can can operate at high power levels, and match its 50-ohm coax feedline without a tuner
[ Hits: 1508 | Votes: 2 | Rating: 4.5 ]

Why good Antennas need good Coax cable - The importance of an efficient antenna feed line that can minimize the disturbing noise for an optimal signal reception
[ Hits: 462 | Votes: 1 | Rating: 10 ]

Trap on Coax Cable - A trap on the coaxial cable, also known as choke, helps to eliminate the sneaking of the reflected RF- energy to the shack. The trap can be made from the coaxial cable that feeds the antenna
[ Hits: 964 | Votes: 2 | Rating: 6.5 ]

Coax Stubs and Band Pass Filters - Will additional coax stubs improve Band Pass Filter performance?
[ Hits: 663 | Votes: 1 | Rating: 2 ]

Simple Coax Mag Loop Antenna - A homemade Magnetic Loop antenna from a spare 3m length of RG213 working from 30m to 15m with a 130pF tuning capacitor
[ Hits: 4004 | Votes: 11 | Rating: 7.18 ]

Quarter Waves and Velocity Factor - Coax Velocity Factor in Baluns, Does it Matter? Test results show coaxial cable velocity factor does not always enter into stub length calculations especially in the world of Baluns
[ Hits: 208 | Votes: 0 | Rating: 0 ]

VHF UHF Coaxial Dipole Antenna - A base station antenna you can easily build for 146,220 or 440 MHz, with performance similar to a J-pole but smaller and less obstrusive
[ Hits: 2931 | Votes: 15 | Rating: 5.55 ]

TelExpress - TelExpress sells RF low loss coax cable, connectors, custom cable assemblies, and compete fiber solutions
[ Hits: 205 | Votes: 0 | Rating: 0 ]
AlphaWire - Maker of the XTRA GUARD high performance electronic cables, flexible coax cables and FIT preferred heat shrink products.
[ Hits: 255 | Votes: 0 | Rating: 0 ]

Delta Electronics - Delta Electronics, Inc. NY USA, family owned and operated selling all varieties of consumer electronics including 10 meter amateur radios, antennas, accessories, microphones, cw transmitters, coax cables and more
[ Hits: 326 | Votes: 0 | Rating: 0 ]

K3LR method of installing a PL259 - A method of installing a PL259 coax connector, a complete tutorial on how to solder Amphenol 83-1SP connectors
[ Hits: 1085 | Votes: 5 | Rating: 2.8 ]
Yes, all my Coax Cables are 75 Ohms - CO2KK exposes some myths about using 75-ohm feedline with 50-ohm rigs and show how to build a cotanget transformer
[ Hits: 1308 | Votes: 3 | Rating: 8.67 ]
Make Your Own Coax Patch Panel - Homemade coax patch panel for antenna and rig switching
[ Hits: 570 | Votes: 4 | Rating: 7.5 ]

RTLSDR Coax Stub - Cutting out the noise using a simple coax filter to improve the poor front end filtering
[ Hits: 754 | Votes: 2 | Rating: 5.5 ]

PL259 Surge Arrestor - A sourge arrestor for PL 259 connectors. A voltage surge arrestor to limit the voltage that may come back down the wire or coax after there has been static build up
[ Hits: 1431 | Votes: 1 | Rating: 10 ]

The myth of SWR causing coax radiation - There are several reasons that can cause coax line radiation, most of them are related to wrong or missing use of a balun, but none can be imputed to load mismatch.
[ Hits: 752 | Votes: 2 | Rating: 6 ]